Climate San Diego

San Diego is influenced by the local steppe climate. There is not much rainfall in San Diego all year long. This location is classified as BSk by Köppen and Geiger. The average temperature in San Diego is 17.2 °C. In a year, the average rainfall is 266 mm.

Climate graph // Weather by Month San Diego

The driest month is July, with 1 mm of rainfall. In January, the precipitation reaches its peak, with an average of 58 mm.

average temperature San Diego

The warmest month of the year is August, with an average temperature of 21.9 °C. At 13.4 °C on average, January is the coldest month of the year.

San Diego Weather by month // weather averages

Avg. Temperature (°C)

Avg. Temperature (°F)

Precipitation / Rainfall (mm)

January

13.4

56.1

58

February

14.1

57.4

47

March

14.5

58.1

55

April

15.8

60.4

20

May

17.2

63.0

5

June

18.8

65.8

2

July

20.9

69.6

1

August

21.9

71.4

1

September

21.3

70.3

5

October

19.1

66.4

9

November

16.1

61.0

29

December

13.7

56.7

34

January

February

March

April

May

June

July

August

September

October

November

December

Avg. Temperature (°C)

13.4

14.1

14.5

15.8

17.2

18.8

20.9

21.9

21.3

19.1

16.1

13.7

Min. Temperature (°C)

8.4

9.2

10.1

11.7

13.8

15.5

17.5

18.4

17.4

14.6

11

8.5

Max. Temperature (°C)

18.5

19

18.9

20

20.6

22.1

24.4

25.4

25.2

23.6

21.2

19

Avg. Temperature (°F)

56.1

57.4

58.1

60.4

63.0

65.8

69.6

71.4

70.3

66.4

61.0

56.7

Min. Temperature (°F)

47.1

48.6

50.2

53.1

56.8

59.9

63.5

65.1

63.3

58.3

51.8

47.3

Max. Temperature (°F)

65.3

66.2

66.0

68.0

69.1

71.8

75.9

77.7

77.4

74.5

70.2

66.2

Precipitation / Rainfall (mm)

58

47

55

20

5

2

1

1

5

9

29

34

The difference in precipitation between the driest month and the wettest month is 57 mm. The variation in annual temperature is around 8.5 °C.